Humidifying apparatus



Oct. 31, 1939. BENTLEY 2,178,389

HUMIDIFYING APPARATUS Filed June 9, 1937, 2 Sheets-Sheet 1 a? I 7 21 I 2 14 84.- as 11 E5 41 INVENTOR STEPHEN BENTLEY ATTORNEY Oct. 31 1939. s. BENTLEY HUMIDIFYING APPARATUS Filed June 9, 1957 2 Sheets-Sheet 2 INVENTOR STEPHEN BENTLEY filawli ATTQ R NE Y Patented Oct. 31, 1939 I r H v I V UNITED STATES PATENT OFFICE HUMIDIFYING APPARATUS Stephen Bentley, St. Lambert, Quebec, Canada Application June 9, 192%, Serial No. 147,298

1 Claim. (01. 237-78) This invention relates to humidifying apparatus the valve casing 20 is threaded onto a tubular in which steam, derived from the steam line or extension 25 formed integral with the base I3 of radiator of a steam heating system, is used as a the chamber 9. The inlet ends of coils I and 8 humidifying agent. are soldered in place within the tubular exten- More particularly, the apparatus provided in sion 25 so that the coils constitute the only means 5 accordance with this invention comprises a pair of conducting steam from the valve casing 20 to of steam coils housed in a condensate collecting the interior of chamber 9. The condensate eschamber and having their inlet ends connected caping through the bottom outlet ll of the chamto asteam line or radiator to receive steam thereher 9 passes into a suitable return conduit 26,

10 from. The steam, after traversing the two coils, the lower end 21 of which is adapted to be con- 10 passes to the upper portion of the condensate nected to the return line of the steam heating collecting chamber from whence it escapes to the system. A check valve 28 is arranged in the conatmosphere through a suitable outlet at the top duit 26 to close the same in the event of back of said chamber. pressure.

Proceeding now to a more detailed description If desired a suitable trap may be connected 15 reference will be had to the accompanying drawbetween the coils l and 8 and the steam supply ings which 5 for the purpose of removing as much water as Fig. 1 is a vertical sectional view of the humidipossible from the steam before it enters the coils. fying apparatus provided in accordance with this Such a modification is shown in Fig. 2 in which invention. 30 designates a vertically disposed trap chamber 20 Fig. 2 is a view similar to Fig. 1 but showing interposed between the valve 6 and the steam line a slight modification. or radiator 5. As here shown the chamber 30 In the construction shown in Fig. 1 steam is comprises a cylindrical body portion 3! provided passed from a steam line or radiator 5 through with removable top and bottom caps 32 and 33 a valve 6 to the intake ends of a pair of steam in threaded engagement therewith. Steam is sup- 25 coils l and 8. These coils are housed in a condenplied to said chamber through a steam inlet 34 sate collecting chamber 9 provided with a top wh ch is pp to the cylindrical body portion steam outlet l0 and a bottom condensate outlet 3! at a point substantially midway between its M. The discharge ends of the coils are directed ends. A baffle 35 is arranged at the inner end downwardly so that the escaping steam impinges of the inlet 34 to direct the incoming steam to- 30 against the heated convolutions of the coils and ward the bottom of the trap chamber. The top then rises toward the outlet Ill. The condensate cap 32 of the trap member is provided with a collecting chamber comprises a body portion l2 steam outlet opening 31 which is threaded to and a base portion l3 which are screwed together receive one end of the valve casing 20. Conas indicated at M so that they may be easily sepdensate escapes from the trap chamber 30 35 .arated to give access to the coils I and 8. The through a bottom outlet 38 and passes into a suitbody portion l2 of the condensate collecting able return conduit 39 which connects with the chamber is formed to provide a tubular neck l5 previously mentioned return conduit 26 at a which surrounds the outlet l0 and terminates in suitable point as indicated at 40.

40 a cup-like portion l6. Condensate, separating A suitable screen 4! is preferably arranged over 40 from the steam as it leaves the outlet ID, is caught the bottom outlet ll of chamber 9 to prevent in the cup-like portion [6 and drops back through Clogging 0f the Outlet 25 by foreign matter the outlet. trained by the steam entering said chamber.

A float valve I8 is mounted on the support 19 Having thus described what I now consider to 4.5 in the upper portion of the chamber 9 and is be the preferred embodiment of this invention it adapted to close the outlet I0 when the chamber will be understood that various modifications may is flooded by condensate due to failure of the be resorted to within the scope and spirit of the heating system. appended claim.

The valve 6 comprises a valve casing 20 I d i q pp With a rotary P ug valve 2| which is Humidifying apparatus comprising a casing 50 pened or closed by means of a Suitable handle provided with a top opening for the escape of 22. One end of the valve casing 20 is tapped into t 3, b ttom opening for the escape of conthe steam line or radiator 5-and provided with a densate and a side opening surrounded by a coudefleotor 23 by which steam is deflected into the pling nipple adapted to be connected to a, source steam passage 24 of the valve. The other end of of t am, aid top opening being surr unded by 55 an upwardly projecting neck having its upper end enlarged to provide a condensate collecting cup, a vertical steam coil arranged in said casing, said coil being open at both ends and having its lower end secured in said coupling nipple so that steam supplied to the latter is permitted to enter the casing only through said coil, a float support arranged in the casing at a point located above the coil but at a substantial distance below said top opening and a movable float on said support adapted to close off the top opening when the casing is flooded.

STEPHEN BENTLEY. 

